A balloon is filled with 100 L of air at a pressure of 5 atm. What is the pressure of the balloon if the volume is changed to 20 L?

A 5.00 ml sample of this koh solution is added to a 250 ml volumetric flask, and water is added to the mark. what is the new molarity of k + ions in this solution?

Alloys are only formed when a metal bonds with a non-metal. a. True b. False

How is a compound different from a miture?

Predict whether the following solutions are acidic, basic, or nearly neutral: a. NaBr, b. K2SO3, c. NH4NO2, d. Cr (NO3). the answer is neutral, basic, acidic, acidic and i am not sure why

Which scientist discovered that other galaxies and stars were moving away from us at speeds proportional to how far they were away?

What is a scientific explanation for a range of hypotheses and observations supported by testing

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?